docs: def raise_(tp, value=None, tb=None):
      """
      A function that matches the Python 2.x ``raise`` statement. This
      allows re-raising exceptions with the cls value and traceback on
      Python 2 and 3.
      """
      if value is not None and isinstance(tp, Exception):
          raise TypeError("instance exception may not have a separate value")
      if value is not None:
          exc = tp(value)
      else:
          exc = tp
      if exc.__traceback__ is not tb:
          raise exc.with_traceback(tb)
      raise exc